When an ant stings a person, the solution of substance A is rubbed on the sting area of the skin to get relief from pain. The substance A is also used in kitchen for cooking purposes. Another substance B is sour in taste and contains an organic acid C. It is used in making pickles. When a solution of A is mixed with B, then a change D takes place to produce bubbles of gas E. a. What are the substances A and B b. Name the acid C c. What type of change is D? d. Name the gas E e. What is the name of the reaction between substances A and B? what type of change is D?
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A=baking soda
B=vinegar
C=carbon dioxide
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